Personalized Believe In Shenanigans Men's V-Neck T-Shirt. Funny St. Patrick's Day Men's V-Neck T-Shirt - Black with leprechaun top hat and shamrocks says I BELIEVE IN SHENANIGANS. Perfect for St. Paddy's Day parties and Irish parades. 4.7 oz., 100% pre-shrunk cotton Narrow, set-in 1x1 mitered V-neck collar Shoulder-to-shoulder taping Double-needle stitched sleeves and bottom hem